Estádio: Cancha 1 Round: 25 Ground: Clay
| Open dos EUA - Qualificação | 2016/08/23 19:20 | Facundo Arguello v Guilherme Clezar | 2-6,3-6 |
| Challenger - Campinas | 2015/09/23 22:25 | Facundo Arguello v Guilherme Clezar | 6-3,6-7,6-4 |
| Challenger - Lima | 2018/10/26 21:00 | Pedro Sousa v Facundo Arguello | 7-6,6-3 |
| Challenger - Lima | 2018/10/25 17:00 | Jose Hernandez-Fernandez v Facundo Arguello | 1-6,2-6 |
| Challenger - Lima | 2018/10/24 19:20 | Facundo Arguello v Paolo Lorenzi | 6-4,7-6 |
| Challenger - Lima | 2018/10/23 17:20 | Juan Pablo Varillas v Facundo Arguello | 4-6,1-6 |
| Challenger - Santo Domingo | 2018/10/07 14:00 | Facundo Arguello v Alejandro Gomez | 3-6,6-1,3-6 |
| Challenger - Campinas | 2018/10/02 13:00 | Alejandro Gonzalez v Facundo Arguello | 6-3,7-6 |
| Challenger - Biella | 2018/09/21 09:00 | Facundo Arguello v Federico Delbonis | 2-6,4-6 |
| Challenger - Biella | 2018/09/20 09:30 | Facundo Arguello v Filippo Baldi | 6-4,6-2 |
| Challenger - Lima | 2018/10/24 16:00 | Guilherme Clezar v Cristian Garin | 3-6,3-6 |
| Challenger - Lima | 2018/10/22 17:55 | Guilherme Clezar v Kento Tagashira | 6-0,6-0 |
| Challenger - Campinas | 2018/10/03 00:05 | Guilherme Clezar v Cristian Garin | 7-6,6-7,4-6 |
| Open dos EUA | 2018/08/23 19:40 | Lorenzo Sonego v Guilherme Clezar | 7-5,5-7,6-3 |
| Open dos EUA | 2018/08/22 22:40 | Ricardo Ojeda Lara v Guilherme Clezar | 4-6,3-6 |
| Challenger - Cordenons | 2018/08/18 15:00 | Mate Valkusz v Guilherme Clezar | 6-2,6-4 |
| Challenger - Cordenons | 2018/08/17 12:30 | Guilherme Clezar v Facundo Bagnis | 6-4,4-6,6-2 |
| Challenger - Cordenons | 2018/08/15 13:10 | Guilherme Clezar v Pedro Cachin | 6-2,6-4 |